Lubricator.



J. MORROW.

LUBRIGATOR.

APPLICATION FILED 1211.9, 1913.

Patented Sept. 15, 1914.

INVENTOR.

WITNESSES:

CM Z 5*??55 Job/7 Mar/"0M JOHN IMOBRCHKT, OF DENVER, COLORADO.

LUBRICATOR.

Specification of Letters Patent.

Application filed Aprilfi, 1913. Serial No. 759,871.

To all whom it may concern Beiit known that I, JOHN Monnow, a citizen of the United States, residing at Denver, in the county of Denver and State of Colorado, have invented certain newand useful Improvements in Lubricators, of which the following is a specification.

This invention relates to improven'ients in lubricators and its principal object resides in the provision of a device of simple construction which is adapted to be used in con nection with any movable or fixed part of locomotive or stationary engines, which will properly feed lubricant with which it is supplied, to the bearing, irrespective of the velocity of the part with which it is connected and which. is capable of adjustment to feed'any grade of hard or liquid lubricant.

Other objects ofmy invention consist in the provision of a lubricator which automatically provides a cushion to counteract the influence of the centrifugal force upon its movable member during its movement with the engine part with which it is associated, which exteriorly indicates the quan tity of lubricant it contains, which in relation to its proportions has a maximum capacity, which is dust proof, readily applied, and easily filled, and which is provided with suitable means to maintain the members of which it is composed, in the proper position with relation to each other and the engine part with which it is connected.

In proceeding in accordance w1th my 111- vention, I rovide in connection with a relatively stationary, tubular housing, a hollow plunger which projects through an axial opening formed in an end thereof and which is enlarged at its inner extremity to form a piston which snugly fits within the housing The piston-end of the plunger is open so that the interiors of the plunger and the housing form one continuous chamber which in practice is filled with the lubricant, a spring is applied between the pistonat the end of the plunger and a shoulder formed at the outer end of the housing around the opening through which the plunger projects, for the purpose of causing the latter to feed the lubricant onto the bearing through the open inner extremity of the housing, and a head is removably attached at the outer end of the plunger to determine the-extent of its inward movement by the action of the spring. The housing is secured in an opening of the 1 engine part to which it is applied, by means of a screw thread formed on its exterior surface, and a set-nut is provided to prevent accidental displacement of the device, by engagement with the said part.

an embodiment of my invention has been illustrated in the accompanying drawings in the various views of which like parts are similarly designated, and in which, s

Figure 1 represents an elevation of my improved lubricator in connection with an engine-part to which it is applied, its plunger having been shown in the extreme position it occupies when the device is filled with the lubricant, Fig; 2, a longitudinal, axial sectionthrough the device as shown in Fig. 1, and Fig. 3, an elevation of the lubricator partially insection showing the plunger in the position it occupies after a part of the contents of the device have been discharged onto the bearing. 1 l l Referring more specifically to the drawings, the reference numeral 2 designates the engine part to which thelubricator is applied, 3 the tubular open-ended housing which at its outervextremity has a throat 4: of reduced diameter in which the plunger hereinafter to bedescribed, isslidaloly fitted. The exterior surface of the outer portion of the housing around the throat 4 is preferably made of hexagon form as shown at '5.

in Fig. 1, for the application of a wrench when the lubricator is being secured to or detached from the engine part.

The numeral 6 designates the hollow plunwhich at its upper closed end has an axially projecting stud 7 for the application of a nut 8 which serves to fix a head 9 of larger diameter than the plunger, at the end thereof, the said head being provided to limit the inward movement of the plunger by engagement with the outer end of the housing. The plunger which as mentioned hereinabovevis slidably fitted in the throat l, is formed at its lower open ex tremity with an annular enlargement to provide apiston 10 which snugly fits within the housing and a spring 12 whichis coiled around the plunger between the said piston and the shoulder formed at the upper end of the housing around the bore of its throat, serves to press the plunger against the fluid lubricant with which in practice both the housing and the plunger are filled, as is in dicated at 23 in the drawings by broken line- Patented Sept. 15, 1914.

shading. To prevent oil from flowing past the piston into the space occupiedby the spring and to at the same time, confine the air within said space for the purpose of forming a pneumatic cushion when the plunger is moved outwardly, the piston is provided with a packing ring 13' and a similar.

ring 14 may, if so'desired, be placed in a recess of the throat to engage the exterior surface of the plunger. The air cushion formed in the space 15 will effectively counteract the tendency of theplunger to move outwardly' by centrifugal force when the part to which the lubricator is applied, rotates at a high rate of speed. The housing is secured in an opening 16 of the engine part 2 bymeans of a thread 17 formed on its exterior surface and afset nut. 18 is screwed onto the same thread to lock the 1 housing in place by engagement withthe exterior surface of the part asshown in the drawings. When the tive position both the housing and the hollow plunger are filled with the lubricant as is shown in Fig. 2, the piston head of the plunger is in consequence disposed in the upper portlon of the housing, and the spring 12 is compressed to cause the plunger to continuously press the oil toward the bearing on which the part 2 is mounted through the opening 16 of the latter. The length of the portion of the plunger extending beyond the outer end of the housing indicates the gan'iount of oil or grease contained in the 'sutliciently long to obviate the necessity ofstopping the engine to replenish the lubricator before the regular time set for that purpose.

Having thus described my invention what posed of two telescoplng members the device is'placed in its opera- After I claim and desire to secure 'byLetters-Pat- I cut is: I

1. In a lubricator, an oil-receptacle comnner one'of which is closed at its outerend and open at its opposite end, and the outer one of which is open at its outer end" which is adapted for insertion bearing to which the lubricator is applied,

"the said inner member having a plunger portion within theouter member, and a relatively .large,*l1ollow stem the interior of which is adapted to constitute a. substantial portion of the lubricant containmg recepinto an opening of a.

tacle, andthe outer member having a neck of reduced diameter tliroughwhich the said stem extends, a spring disposed between the said plungerportion and the shoulder formed around the said neck, for moving theinner member inwardly against the re-- sistanceof a body of fluid with which. the receptacle is filled, and packings applied around the said plunger portion and within the said neck whereby an air cushion between the two members is produced.

In a lubricator, an oil-receptacle com-Q posed of two telescoping'members the inner at its outerend and one of which is closed open at its opposite enchand the outer one of which is open at its outer end Which'i's adapted'for insertionginto an opening I or a bearing to which the luhricator is applied, the said inner member having a plungerportion slidingly fitted within the outer member,,and a relatively large, hollow stem 7 the interior of which is adapted to constitute asubstantial portion of the'lubricantcontaining receptacle, and. the outer memher having a neck of reduced diameter in which said stem is slidingly fitted, and a spring disposed between the said plunger portion and the shoulder formed around the said neck, or moving the inner member inwardly against the resistance of a body of fluid with which the receptacle is filled.

In testimonywhereof '1 have aflixed my signature in presenoeoftwo witnesses.

' I JOHN MORROW.

WVitnesses: I I i G. J. RoLnAnDE'r,

L. Rrronnns.

T Copies of this patent may be obtained for five cents eac11,-by addressing the Commissioner of Patents,

Washington. no. 

